/**
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package jms.example.message.browser;

import org.apache.activemq.ActiveMQConnectionFactory;

import javax.jms.*;
import java.util.Enumeration;
import java.util.concurrent.TimeUnit;

/**
 * @author <a href="http://www.christianposta.com/blog">Christian Posta</a>
 */
public class Browser {
	private static final String BROKER_URL = "tcp://localhost:61616";
	private static final Boolean NON_TRANSACTED = false;
	private static final long DELAY = 100;

	public static void main(String[] args) {
		String url = BROKER_URL;
		if (args.length > 0) {
			url = args[0].trim();
		}
		ActiveMQConnectionFactory connectionFactory = new ActiveMQConnectionFactory("admin", "password", url);
		Connection connection = null;

		try {

			connection = connectionFactory.createConnection();
			connection.start();

			Session session = connection.createSession(NON_TRANSACTED, Session.AUTO_ACKNOWLEDGE);
			Queue destination = session.createQueue("test-queue");
			QueueBrowser browser = session.createBrowser(destination);
			@SuppressWarnings("unchecked")
			Enumeration<TextMessage> enumeration = browser.getEnumeration();

			while (enumeration.hasMoreElements()) {
				TextMessage message = (TextMessage) enumeration.nextElement();
				System.out.println("Browsing: " + message);
				TimeUnit.MILLISECONDS.sleep(DELAY);
			}

			session.close();

		} catch (Exception e) {
			System.out.println("Caught exception!");
		} finally {
			if (connection != null) {
				try {
					connection.close();
				} catch (JMSException e) {
					System.out.println("Could not close an open connection...");
				}
			}
		}
	}
}